Because the old turnip is 25 mm · 7 A designation. When I looked at the picture, I was not familiar with medium-sized slender board wire fuse for home appliances, so it was uneasy, but since it is "auto fuse" purchased on trial. After all, it is 125 v 7 A with a line fuse, and the hand held tester does not know the difference from the 12 v product. I have tried it for the current car for two weeks but there is no problem at present. If possible, please explain whether this line fuse is different from the conventional 12v version · What is the exchange problem?